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drm/nouveau: GA100 has an FRTS region size of zero

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When booting with GSP-RM, the FRTS data region normally needs to be
allocated.  However, on GA100, this region is not used and so its
size needs to be set to zero.

The truth is that GA100 is just special, and the simplest way to
determine the proper FRTS data region size is to check for this
GPU specifically.

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Link: https://patch.msgid.link/20260430223838.2530778-7-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Timur Tabi 2026-04-30 17:38:34 -05:00 committed by Danilo Krummrich
parent 0ae50100b2
commit 16d4747cd1
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/nouveau/nvkm/subdev/gsp/tu102.c
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@ -367,8 +367,13 @@ tu102_gsp_oneinit(struct nvkm_gsp *gsp)
if (ret)
return ret;
/* Calculate FB layout. */
gsp->fb.wpr2.frts.size = 0x100000;
/*
* Calculate FB layout. FRTS is a memory region created by running the FWSEC-FRTS
* command, which writes power management data into WPR2. On GA100, the booter
* firmware handles WPR2 setup directly and FRTS data is not needed, so no FRTS
* region is reserved.
*/
gsp->fb.wpr2.frts.size = device->chipset == 0x170 ? 0 : 0x100000;
gsp->fb.wpr2.frts.addr = ALIGN_DOWN(gsp->fb.bios.addr, 0x20000) - gsp->fb.wpr2.frts.size;
gsp->fb.wpr2.boot.size = gsp->boot.fw.size;